As 130 million Americans vote on Tuesday, here's our guide to when and where a clear winner may emerge

By the end of November 8, the world will know whether Donald Trump or Hillary Clinton will lead America in the next four years as the 45th US President.

Some 130 million voters out of an eligible population of 225m will cast ballots across 50 states to elect the next set of leaders of the most powerful nation on earth from 6am (Eastern Startand Time) on Tuesday.

But in America's rather complicated electoral system, it’s not enough to have majority of the votes for either Trump or Clinton to go to the White House.

Rather, Tuesday elections will be a race to secure a majority of the 538 votes in the electoral college —by securing at least 270 votes.